<template>
<div class="tabs">
  <el-tag
  size="small"
  v-for="(tag, index) in tags"
  :key="tag.name"
  :closable = "tag.name !== 'home'"
  :effect= "$route.name === tag.name ? 'dark' : 'plain'"
  @click="changeMenu(tag)"
  @close="handleClose(tag, index)"
  >
  {{tag.label}}
  </el-tag>
</div>
</template>

<script>
import { mapState, mapMutations } from 'vuex'
export default {
  name: 'CommonTag',
  data() {
    return {

    }
  },
  computed: {
    ...mapState({
      tags: state => state.tab.tabsList
    })
  },
  methods: {
    ...mapMutations({
      close: 'closeTag'
    }),
    changeMenu(item) {
      this.$router.push({ name: item.name })
    },
    handleClose(tag, index) {
      const length = this.tags.length - 1
      this.close(tag)
      if(tag.name !== this.$route.name) {
        return;
      }
      if(index === length) {
        this.$router.push({
          name: this.tags[index - 1 ].name
        })
      } else {
        this.$router.push({
          name: this.tags[index].name
        })
      }
    }
  }

}
</script>

<style scoped lang="less">
.tabs {
  padding: 20px;
  .el-tag {
    margin-right: 15px;
    cursor: pointer;
  }
}
</style>
